Still, the Xwayland window is missing a title bar that would allow for moving the window around.
This is because Wayland does not decorate its surfaces, this is left to the Wayland client themselves to add window decorations (also known as client side decorations, or CSD for short).
This however would add a lot of complexity to Xwayland (which is primarily an Xserver, not a full fledged Wayland application). Thankfully, there is libdecor which can fence Xwayland from that complexity and provide window decorations for us.
This seems… ridiculous. Windows and MacOS developers don’t worry about creating decorations. And they don’t worry about that “adding a lot of complexity”. Even with X11 you get decorations from the WM without any work. I know I don’t understand the glory that is the Wayland architecture and that a bunch of folks will now angrily tell me all the numerous ways in which I’m not only wrong but but also stupid but… It just seems weird is all.